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Joachim Fuchsberger as Ralph Hubbard/Inspektor Conway |
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Karin Dor as Muriel Irvine |
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Horst Frank as Kiddie Phelips |
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Werner Peters as Sergeant Meals |
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Dieter Eppler as Summerfield |
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Friedrich Schoenfelder as Sir James |
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Mady Rahl as Mrs. Falk |
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Paul Klinger as Inspektor Dawson |
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Gerd Frickhöffer as Lord Ensfield |
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Chris Howland as Gideon |
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Lotte Brackebusch as Penelope |
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Hans Bergmann as Stewart Maloney |
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Fritz Eberth as Sergeant Gibbs |
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Richard Häussler as |
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Dietrich Kerky as |
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Erik Radolf as |
| Art | Ernst H. Albrecht | Production Design |
| Directing | Harald Reinl | Director |
| Writing | Louis Weinert-Wilton | Novel |
| Writing | Egon Eis | Writer |
| Production | Gero Wecker | Producer |
| Production | Werner M. Lenz | Executive Producer |
| Camera | Werner M. Lenz | Director of Photography |
| Editing | Wolfgang Wehrum | Editor |
| Costume & Make-Up | Irms Pauli | Costume Design |
| Sound | Peter Thomas | Original Music Composer |